Q. Yu, C. Kan, Z. Hou, M. Yang, N. Zheng, and H. Yuan, “A Hybrid GCN–PCA–LSTM Framework for Accurate Spatiotemporal Prediction of PM2.5 Concentrations”, FCIS, vol. 15, no. 3, pp. 165–170, Mar. 2026, doi: 10.54097/ntnxdp19.